Simpson, trying to win the PGA Tour money title, made two late birdies for 3-under 67 at the McGladrey Classic. That left him two shots behind Billy Horschel, who picked up four shots over his last four holes for 64.

After finishing his second round, Simpson said he would play the year's final tournament, next week at Lake Buena Vista, in his bid to capture the money title. Donald, atop the money list by $68,971 over Simpson, said earlier in the day he would add next week's event to his schedule.

Donald, who was in England for his caddie's wedding, said on Twitter: "There was never really a decision to be made. I have a chance of making history. See you all at Disney next week." That was followed by a hash tag that said, "Bring it on."

Simpson kept doing just that.

After opening with 63 and facing stronger wind off the coastal waters, he survived a shaky start and poured in enough birdies to get into the lead with Michael Thompson, who had 64. They stayed there until Horschel made his late burst to take the lead at 12-under 130.

"I figured Luke was going to play," Simpson said. "I think he's kind of thinking the same thing I'm thinking, that if one of us was going to play, the other one really needed to."

It's the first time since 2003, when Vijay Singh held off Tiger Woods in the Tour Championship, that the tour money title will come down to the final tournament.

Horschel is No. 139 on the money list and said he's not worried — not as he tries to finish among the top 125 to keep his tour card, or tries to stay in the top 150 to avoid two stages of qualifying school.

"I'm not worried about No. 139," Horschel said. "I'm worried about playing well."

LPGA: Stacy Lewis joined fellow American Brittany Lang atop the leaderboard after Round 2 of the LPGA Malaysia in Kuala Lumpur. Lewis shot 65 to tie Lang, also a co-leader after the first round, at 9-under 133. Brittany Lincicome of Seminole recovered from her opening 75 to shoot 68. Tampa's Cindy LaCrosse (71—145) and Kristy McPherson (78—151) were further back.

CHAMPIONS: Fred Couples and Steve Lowery shot 7-under 65 to share the first-round lead at the AT&T Championship in San Antonio, Texas.